Recoil-gun with recuperator-spring.



No. 886,611. PATENTED MAY 5, 1908. H. KANONENBERG.

REGOIL GUN WITH REOUPERATOB. SPRING. APPLICATION FILED AUG. 2 1907.

imrrnn sra'rps Parana OFFICE.

HEINRICH KANONENBERG, OF ESSEN-ON-THE-RUHR, GERMANY, ASSIGNOR TO FRIED. KRUPP AKTIENGESELLSCHAFT, OF ESSEN-ON-THE-RUHR, GERMANY.

RECOIL-GUN WITH RECUPERATOR-SPRING.

Specification of Letters Patent.

Application filed August 2, 1907.

Patented May 5, 1908.

Serial No. 386,844.

To all whom it may concern:

Be it known that I, HEINRICH KANONEN- BERG, a subject of the Emperor of Germany, and a resident of Essen-on-the-Ruhr, Germany, have invented certain new and useful Improvements in Recoil Guns with Recuperator-Springs, of which the following is a specification.

The present invention relates to recoil guns with recuperator spring and the object of the invention is to make it possible to rapidly mount or insert those recuperator springs that in mounted position, must have very high initial tension.

One embodiment of the invention is shown in the accompanying drawings by the way of example.

Figure 1 shows those parts of a recoil gun to which the invention relates, provided with the device for motmting the recuperator spring, theview being partly in vertical longitudinal section and partly in elevation, and the parts being shown in the position in which the imparting of tension to the recuperator spring is almost completed. Fig. 2 is an end view of Fig. 1, looking from the left; Fig. 3 is a section on line 33, Fig. 2, looking from the left; Fig. 4 is a section on line 4-4, Fig. 1, looking from the right, and Fig. 5 shows, in a view corresponding to that shown in Fig. 1, the parts of the gun to which the invention relates and in the position in which the recuperator spring is completely inserted.

The gun barrel A slides on the track carrier B which serves as a housing for the fluid brake C, D and the reouperator spring E.

In the mounted condition of the brake (Fig. 5) the brake cylinder C is secured to the horn a of the breech of the gun barrel through the medium of a threaded extension 0 and a nut 0 while the piston rod D is nonslidably connected with a closing cap b of the track carrier through the medium of a collar d and a nut 01 which is mounted on a threaded extension d of the piston rod. The cap I) is detachably secured on the track carrier B. The recuperator spring E surrounds the brake cylinder 0 and has one end abutting against an abutment F rigidly connected to the track carrier, and the other end of the spring abuts against a collar 0 on the brake cylinder O. The cylinder O is provided with ribs 0 for which guide-ways b are provided in the track carrier B.

A winding device having a rope P and a loose pulley M serves for inserting the recuperator spring. I

The winding drum G of the winding device is journaled in a frame H and can be rotated by means of a crank J. On that end of the drum G which is nearest to the crank J is formed a locking disk G of a friction locking device which has its friction pawl K (see in particular Fig. 3) arranged in the frame H in such a manner that it permits rotation of the drum Gin the direction of the arrow 9: (Fig. 1) or y (Fig. 3) while it automatically locks the drum against rotation in the opposite direction. The locking device K G can be unlocked by hand by means of a hand wheel 1c arranged on the shaft of the friction pawl K. The rope P is secured to that end of the drum G which is farthest away from the looking disk G, and the diameter of the drum decreases gradually from this end of the drum towards the locking disk. In order to make it possible to easily and rapidly attach and detach the drum to and from the track carrier B, the bottom of the track carrier is provided with guide or attaching claws b b for ribs h (Figs. 1 and 4) arranged on the frame H of the drum. The claws are closed towards the muzzle of the gun barrel, and the drum frame, when in the position shown in Fig. 1, therefore, cannot move in the direction of the arrow 2 (Fig. 1).

The loose pulley M is journaled in a pulley carrier N which is provided with a bore a (Fig. 1) of such a shape that the carrier can be inserted on the free end of the piston rod D and abut against the brake cylinder when the piston rod is completely shoved in the same.

On the free end of the rope P an eye p is secured and by means of this the ro e can be secured to a hook 5 arranged on t e top of the track carrier B.

The mounting or insertion of the recuperator spring E takes place in the following manner. After the recuperator s ring has been inserted on the brake cylin er C the latter is shoved into the track carrier B until the recuperator spring hits the abutment F.

The frame H with the drum G is then secured on the track carrier and the pulley carrier N with the pulley M is inserted on the free end of the piston rod D. Thereupon the rope is placed on the pulley M and the eye 7 of the rope is inserted on the hook I) of the track carrier B. The rope winding device has then been interposed between the fixed abutment (F) and the movable abutment (c of the recuperator spring through the medium of the track carrier B and the brake cylinder C. If the crank J is then turned to wind the rope P on the drum G the pulley carrier N will cause the brake cylinder to be shoved into the track carrier and tension will be imparted to the recuperator spring. Due care must be taken that the ribs (2 enter into engagement with the guides 72 while the cylinder is being shoved in. The rotation of the crank J is continued until the threaded extension 0 of the brake cylinder C has passed through the horn a of the breech and the brake cylinder has come into abutment with the horn a. The nut c is thereupon screwed on the threaded extension 0 to connect the brake cylinder C with the horn. a. After the rope P is taken off and the other parts of the winding device are removed from the gun the cap 6 is secured on the track carrier and the nut d is screwed on the threaded extension (Z to secure the piston rod D to the cap I) (Fig. 5). I

During the insertion of the recuperator s ring the tension of the spring increases, and a lowan'ce is made for this fact by having the drum of conical shape as shown in the drawing. I Vhile the rope P is being wound on the drum the effective radius of the drum becomes gradually smaller and the moment of load, therefore, does not increase with the tension of the recuperator spring.

By using a rope winding device it is possible to insert very rapidly also such recuperator springs (such as the recuperator springs of high elevational guns) which must have a high initial tension in inserted position. In addition to this advantage, which the rope winding device has over the screw winding device suggested for the same purpose, the rope winding device is less sensitive than the screw winding device and it is possible, by making the winding drum of suitable shape, to make allowance for the increase in tension which takes place while the spring is being inserted.

Having thus described my invention, what is claimed as new, and desire to secure by Letters Patent, is:

1. In a recoil gun, a recuperator spring, a fixed and a movable abutment for the spring, a part adapted to be connected with the movable abutment, and a rope winding device provided with a rope adapted to engage said part to draw the movable abutment towards the fixed abutment to impart initial compression to the spring.

2. In a recoil gun having a recuperator spring, a track carrier serving as a housing for the recuperator spring, and provided with means adapted to receive the winding drum of a rope winding device for imparting initial tension to the spring; said carrier being pro vided with a hook adapted to receive the free end of the rope of the winding device.

3. In a recoil gun with recuperator spring, a track carrier forming a housing for the recuperator spring, means provided on the bottom of the track carrier and adapted to receive the winding drum of a rope windin device, and a hook provided on the top or the track carrier and adapted to receive the free end of the rope of the winding device.

4. In a recoil gun, a track carrier provided with an abutment, a hook and claws, a recuperator spring, a movable abutment for said spring, a part connected with the movable abutment and carrying a pulley, and a rope winding device secured by the claws and provided with a rope passing over the pulley and secured to the hook.

5. In a recoil gun, a track carrier, provided with an abutment, a recuperator spring, a recoil brake having a piston rod, a pulley carrier formed to fit the piston rod, and a rope winding device mounted on the track carrier and having its winding rope passing over the pulley.

6. The combination with a recoil gun having a recuperator spring, of means for imparting initial compression to the spring, and means preventing the increase of the moment of the load with the increase of the tension of the recuperator spring.

7. In a recoil gun, a recuperator spring, a fixed and a movable abutment for the spring, and a rope winding device interposed between the fixed and the movable abutment and adapted to impart initial compression to the recuperator spring, and comprising a winding drum of conical form.

8. In a recoil gun, a track carrier provided With an abutment, a hook and claws, a recuperator spring, a recoil brake having a piston rod, a pulley carrier formed to fit the end of the piston rod, and a rope winding device secured to the claws, and having its rope passing over the pulley and secured to the hook.

9. A device for imparting initial compression to recuperator springs in recoil guns, comprising a rope winding device, and a pulley carrier formed to fit the piston rod of the gun and having its ulley adapted to be engaged by the rope o the winding device.

10. In a recoil gun, a recuperator spring, a fixed and a movable abutment for the spring,

means for interposing a rope Winding device 1 The foregoing specification signed at Diisbetween the fixed and the movable abutseldorf, Germany, this fifteenth day of June, ment, and means adapted to be engaged by I 1907.

the rope of the Winding device to move the HEINRICH KANONENBERG. 5 movable abutment towards the fixed abut- In presence 0fment to impart initial compression to the l M. ENGELS,

spring. ALFRED POHLMEYER. 

